ROE measures how efficiently a company uses shareholders' equity to generate profits. It's a key metric for evaluating management quality.
Net income of $5 million with equity of $25 million gives ROE = 20%. The company generates 20 cents of profit for every dollar of equity.
ROE of 15-20% is considered good. Above 20% is excellent. Compare ROE within industries. Consistently high ROE often indicates a competitive advantage.
A good ROE typically exceeds 15-20% for many industries, indicating strong management efficiency. However, benchmarks vary by sector:
Always compare ROE to industry peers and the company's 5-year historical average. An ROE above the cost of equity (typically 8-12%) signals value creation for shareholders.
ROE can be misleading on its own because it doesn't tell you how a company achieves its return. DuPont analysis decomposes ROE into three components to reveal what's actually driving returns:
| Component | Formula | What It Shows |
|---|---|---|
| Net Profit Margin | Net Income ÷ Revenue | How much profit per dollar of sales |
| Asset Turnover | Revenue ÷ Total Assets | How efficiently assets generate sales |
| Equity Multiplier | Total Assets ÷ Equity | How much leverage (debt) is used |
This decomposition is powerful. Two companies with identical 20% ROE may have very different risk profiles: Company A might earn it through high margins and low leverage (safer), while Company B might achieve it through heavy debt (riskier). DuPont analysis helps you distinguish between quality ROE and artificially inflated ROE driven by leverage.
ROE is one of the most widely tracked metrics by professional investors, and for good reason. Warren Buffett famously uses ROE as a primary filter for evaluating companies. A consistently high ROE indicates that management is deploying shareholders' capital effectively, which tends to compound wealth over time. Companies with ROE above 20% sustained over 5+ years often possess durable competitive advantages — strong brands, network effects, or switching costs — that allow them to earn outsized returns without attracting excessive competition.
From a valuation perspective, ROE directly determines how fast a company can grow without raising external capital. The sustainable growth rate formula makes this explicit: Sustainable Growth Rate = ROE × (1 − Dividend Payout Ratio). A company with 25% ROE and a 40% payout ratio can sustainably grow at 15% per year from retained earnings alone. This is why growth investors pay close attention to ROE — it tells you whether a company's growth is self-funded or dependent on debt and equity issuance.
Apple (AAPL): Apple consistently posts ROE above 150%. Yes, you read that right. This astronomical figure is driven by two factors: massive net profit margins (25%+) and an incredibly small equity base, because Apple aggressively buys back stock (reducing equity) and carries substantial debt. While the headline ROE looks incredible, the DuPont analysis reveals it's largely a function of financial engineering through buybacks rather than operational improvement.
Walmart (WMT): Walmart's ROE hovers around 18-22%, achieved through thin profit margins (2-3%) but extremely high asset turnover — it converts inventory to cash faster than almost any other retailer. This is a classic operational efficiency story: low margins compensated by massive volume and efficient asset utilization.
Bank of America (BAC): Banks typically show ROE of 8-12%. After the 2008 crisis, regulators required banks to hold more equity, which depressed ROE. A bank with 10% ROE and high leverage (equity multiplier of 10x) is fundamentally different from a tech company with 25% ROE and minimal debt.
Use 5-year average ROE instead of a single year. One year can be distorted by unusual events. A company maintaining 18%+ ROE over 5+ years is far more impressive than one that spikes to 30% in a single year then reverts to 10%.
Pair ROE with ROIC (Return on Invested Capital). ROIC accounts for both equity and debt, giving a more complete picture of capital efficiency. A company with high ROE but low ROIC is likely using leverage to inflate returns.
Watch the trend, not just the level. A declining ROE trend — even if still above 15% — can signal eroding competitive advantages, margin pressure, or poor capital allocation decisions. Conversely, improving ROE may indicate a turnaround in progress.
These three metrics sound similar but answer different questions:
For stock investors evaluating company quality, ROE is usually the most relevant. For evaluating management's use of all resources (including borrowed money), ROA is better. For personal investment decisions, ROI is your metric.
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Return on Equity = Net Income ÷ Shareholder Equity. It measures how efficiently a company generates profit from shareholders' capital. A ROE of 20% means the company generates 20 cents of profit for every dollar of equity. Consistently high ROE (15%+) is one of the strongest indicators of a quality business.
What is a good ROE?
15-20% is strong. Above 20% is excellent — companies like Apple, Visa, and Moody's sustain 30-50%+ ROE. Below 10% suggests mediocre capital allocation. However, extremely high ROE can be inflated by debt (which reduces equity). Always check debt levels alongside ROE. Use DuPont analysis to decompose ROE into margin, turnover, and leverage components.
How does debt affect ROE?
Debt reduces equity (assets - liabilities = equity), artificially boosting ROE. A company with strong profits but heavy debt can show 40% ROE, but the high leverage increases bankruptcy risk. Compare ROE to ROIC (Return on Invested Capital), which accounts for both debt and equity, for a cleaner picture.